Friends Franzi, Marieave and Kim planned to spend the summer rehearsing for a Peter Pan play, but when strange things start to happen at the theatre they take on the role of investigators.
Unfortunately the movie The Three Exclamation Marks is not yet available on HBO Max.
| Art | Susanne Hartmann | Set Dresser |
| Directing | Viviane Andereggen | Director |
| Writing | Simon Hauschild | Writer |
| Writing | Sina Flammang | Writer |
| Art | Pierre Galic | Painter |
| Sound | Lukas Brandes | Boom Operator |
| Directing | Henrike Wöbking | First Assistant Director |
| Production | Detlev Nocke | Production Driver |
| Crew | Torsten Jerabek | Stunt Coordinator |
| Crew | Martin Langer | Cinematography |
| Production | Phillis Dayanir | Casting |
| Crew | Manuel Faber | Set Production Assistant |
| Crew | Sven Rosenkranz | Set Production Assistant |
| Directing | Melanie Weber | Assistant Director |
| Production | Daniel Timm | Location Manager |
| Production | Rafael Walczak | Production Driver |
| Sound | Riad Abdel-Nabi | Music |
| Costume & Make-Up | Nadine Scherer | Makeup Artist |
| Production | Helga Kles | Production Coordinator |
| Production | Martin Moszkowicz | Co-Producer |
| Production | Oliver Nommsen | Line Producer |
| Costume & Make-Up | Ute Paffendorf | Costume Design |
| Production | Johanna Hellwig | Casting |
| Costume & Make-Up | Alisza Pfeifer | Makeup Artist |
| Editing | Constantin von Seld | Editor |
| Sound | Wilmont Schulze | Foley Artist |
| Costume & Make-Up | Annette Schirmer | Makeup Artist |
| Art | Heike Steen | Set Decoration |
| Production | Erik Merten | Production Driver |
| Production | Carsten Stein | Production Driver |
